Thermophoretic mobility of polymers

聚合物的热泳动性

• 批准号: 247616012
• 负责人: Professor Dr. Werner Köhler
• 金额: --
• 依托单位: The Wolfson Department of Chemical Engineering
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2013-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/247616012?language=en
• 关键词: Thermophoretic; mobility; polymers

The aim of the project is to continue and intensify an already existing collaboration between the applicant and Prof. Konstantin I. Morozov during a sabbatical leave of absence at the Technion-Israel Institute of Technology in Haifa, Israel, for a total of six weeks. The focus of the work shall be on the thermophoretic mobility of polymers. The thermophoretic mobility of high polymers in solution does not depend on the molar mass. Recently, it has been shown by the group of the applicant that there is a significant deviation from this rule for shorter chains and that the relevant entities for polymer thermophoresis are correlated units comparable to the Kuhn segment. The applicant and his host have already started to develop a simple model that explains the universal value of the thermal diffusion coefficient of stiff polymers by the same mechanism that governs the isotope Soret effect in mixtures of small molecules. During the visit to Haifa the applicant and K. Morozov plan to further develop the theorie for polymer thermophoresis, to reevaluate data measured in the group of the applicant and to identify relevant questions for future experiments.

该项目的目的是继续和加强申请人与Konstantin I. Morozov教授之间已经存在的合作，在以色列海法以色列理工学院休假期间，总共六个星期。工作的重点应放在聚合物的热泳迁移率上。高聚物在溶液中的热泳迁移率与摩尔质量无关。最近，申请人小组已经表明，对于较短的链存在明显的偏离这一规则，并且聚合物热泳的相关实体是与库恩段相当的相关单元。申请人和他的东道主已经开始开发一个简单的模型，用控制小分子混合物中同位素Soret效应的相同机制来解释刚性聚合物的热扩散系数的普遍值。在访问海法期间，申请人和K. Morozov计划进一步发展聚合物热泳理论，重新评估申请人组中测量的数据，并为未来的实验确定相关问题。